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22.10.2. Green Rating for Integrated Habitat Assessment (GRIHA)


GRIHA is a Sanskrit word meaning - ‘Abode’.


GRIHA has been conceived by TERI and developed jointly with the Ministry of New and Renewable Energy, Government of India.

The green building rating system devised by TERI and the MNRE is a voluntary scheme.


Objective


The primary objective of the rating system is to help design green buildings and, in turn, help evaluate the ‘greenness’ of the buildings.


Aim


The rating system aims to achieve efficient resource utilization, enhanced resource efficiency, and better quality of life in the buildings.


Rating Tool


GRIHA is a rating tool that helps people assess the performance of their building against certain nationally acceptable benchmarks and is suitable for all kinds of buildings in different climatic zones of the country.

Going by the old adage ‘what gets measured, gets managed’, GRIHA attempts to quantify aspects such as energy consumption, waste generation, renewable energy adoption, etc. so as to manage, control and reduce the same to the best possible extent.

It will evaluate the environmental performance of a building holistically over its entire life cycle, thereby providing a definitive standard for what constitutes a ‘green building’.

The rating system, based on accepted energy and environmental principles, will seek to strike a balance between the established practices and emerging concepts, both national and international.

The guidelines/criteria appraisal may be revised every three years to take into account the latest scientific developments during this period.

The basic features


The system has been developed to help ‘design and evaluate’ new buildings (buildings that are still at the inception stages).

A building is assessed based on its predicted performance over its entire life cycle - inception through operation.

The stages of the life cycle that have been identified for evaluation are:


Rating system


GRIHA rating system consists of 34 criteria categorized under 4 categories.


They are


1. Site Selection and Site Planning,


2. Conservation and efficient utilization of resources,


3. Building operation and maintenance, and


4. Innovation points.


Eight of these 34 criteria are mandatory, four are partly mandatory, while the rest are optional. Each criterion has a number of points assigned to it.

It means that a project intending to meet the criterion would qualify for the points. Different levels of certification (one star to five stars) are awarded based on the number of points earned. The minimum points required for certification is 50.

Do you know?


Medini Puraskar Yojana - This award is given to Indian authors each year to encourage original works in Hindi on environment and its related subjects such as wildlife, water resources and conservation

The benefits


On a broader scale, this system, along with the activities and processes that lead up to it, will benefit the community at large with the improvement in the environment by reducing GHG (greenhouse gas) emissions, reducing energy consumption and the stress on natural resources.

Reduced energy consumption without sacrificing the comfort levels


Reduced destruction of natural areas, habitats, and biodiversity, and reduced soil loss from erosion etc.


Reduced air and water pollution (with direct health benefits)


Reduced water consumption


Limited waste generation due to recycling and reuse


Reduced pollution loads


Increased user productivity

Enhanced image and marketability


The challenges


The Indian building industry is highly de-centralized with people and/ or groups engaged in design, construction, equipment provision, installation, and renovation working together.

Each group may be organized to some extent, but there is limited interaction among the groups, thus disabling the integrated green design and application process.

Hence, it is very important to define and quantify sustainable building practices and their benefits.


It is also important to separate the role of different participants in ensuring that the building consumes minimal resources over its entire life cycle and leaves behind a minimal environmental footprint.

Do you know?


Amrita Devi Bishnoi Wildlife Protection Award is given for significant contribution in the field of wildlife protection, which is recognised as having shown exemplary courage or having done exemplary work for the protection of wildlife.